Systems and apparatuses for inserting an implant in intervertebral space
First Claim
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1. A tool for inserting an intervertebral implant into an intervertebral space between adjacent vertebrae, comprising:
- a tool body having a longitudinal tool axis;
a proximal handle portion of the tool body;
an actuator operably connected to the tool body;
first and second pairs of laterally adjacent shiftable prongs having elongate bodies and each pair having a prong with a superiorly extending distal projection and a laterally adjacent prong with an inferiorly extending distal projection, the superiorly and inferiorly extending distal projections extending in respective superior and inferior directions along a vertical axis orthogonal to the longitudinal axis, the first and second pairs of shiftable prongs disposed at a distal end of the tool body with each pair of shiftable prongs spaced laterally from the longitudinal axis and the other pair of shiftable prongs;
wherein one prong of each of the pairs is operably connected to the other laterally adjacent prong of the same pair of laterally adjacent prongs and to the actuator to shift the prongs between a non-engaging configuration, wherein the projections of the prongs are positioned for being out of engagement with the intervertebral implant, and an engaging configuration, wherein the superiorly extending distal projection of one prong of each pair shifts superiorly and the inferiorly extending distal projection of the other laterally adjacent prong of each pair shifts inferiorly for engaging with the intervertebral implant for manipulation and insertion thereof into the intervertebral space.
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Abstract
Systems and tools for inserting and securing an implant within the intervertebral space. An intervertebral disc implant with upper and lower bearing members with an articulation interface between the members for providing relative motion therebetween. The implant may be provided with various securing members for fixing the implant within the intervertebral space. A tool may be used to insert the implant, which includes a plurality of shiftable implant engaging members that are shiftable between non-engaging and engaging configurations to alternatively release or hold the implant.
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Citations
16 Claims
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1. A tool for inserting an intervertebral implant into an intervertebral space between adjacent vertebrae, comprising:
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a tool body having a longitudinal tool axis; a proximal handle portion of the tool body; an actuator operably connected to the tool body; first and second pairs of laterally adjacent shiftable prongs having elongate bodies and each pair having a prong with a superiorly extending distal projection and a laterally adjacent prong with an inferiorly extending distal projection, the superiorly and inferiorly extending distal projections extending in respective superior and inferior directions along a vertical axis orthogonal to the longitudinal axis, the first and second pairs of shiftable prongs disposed at a distal end of the tool body with each pair of shiftable prongs spaced laterally from the longitudinal axis and the other pair of shiftable prongs; wherein one prong of each of the pairs is operably connected to the other laterally adjacent prong of the same pair of laterally adjacent prongs and to the actuator to shift the prongs between a non-engaging configuration, wherein the projections of the prongs are positioned for being out of engagement with the intervertebral implant, and an engaging configuration, wherein the superiorly extending distal projection of one prong of each pair shifts superiorly and the inferiorly extending distal projection of the other laterally adjacent prong of each pair shifts inferiorly for engaging with the intervertebral implant for manipulation and insertion thereof into the intervertebral space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12)
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9. An implant and tool combination for inserting an implant within an intervertebral space between adjacent vertebrae, comprising:
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an intervertebral disc implant; an upper bearing member of the intervertebral disc implant having a body, an outer facing bearing surface, and an inner facing surface; a lower bearing member of the intervertebral disc implant having a body, an outer facing bearing surface, and an inner facing surface; an articulation interface formed between portions of the inner facing surfaces of the upper and lower bearing members for allowing relative movement therebetween; tool receiving recessed openings formed in the inner facing surface of each of the upper and lower bearing members; a docking portion of the outer facing bearing surface of at least one of the upper and lower bearing members for receiving a complimentary tab member of a tool; a tool for holding and inserting the intervertebral disc implant; a tool body of the tool having proximal and distal ends and a longitudinal axis extending therebetween; first and second pairs of laterally adjacent shiftable prongs disposed at the distal end of the tool body, the prongs having elongate bodies wherein one prong of each pair includes a superiorly extending distal projection and the other laterally adjacent prong of the same pair includes an inferiorly extending distal projection, the superiorly and inferiorly extending distal projections extending in respective superior and inferior directions along a vertical axis orthogonal to the longitudinal axis, the first and second pairs of prongs sized and configured to shift between a non-engaging configuration, wherein the prongs are positioned for being out of engagement with the intervertebral implant, and an engaging configuration, wherein the superiorly extending distal projection of one prong of each pair shifts superiorly and the inferiorly extending distal projection of the other laterally adjacent prong of each pair shifts inferiorly for being received in the tool receiving recessed openings for manipulating and inserting the bearing members into the intervertebral space; and a tab member at the distal end of the tool body configured to be received by the docking portion causing the distal projections of the prongs to be positioned for being shifted inferiorly and superiorly to fit in the tool receiving recessed openings of the upper and lower bearing members. - View Dependent Claims (10, 11, 13, 14, 15, 16)
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Specification